Subj : Re: accessing a subset of a subset
To   : borland.public.cpp.borlandcpp
From : "Ed Mulroy [TeamB]" <dont_email_me@bitbuc.ket>
Date : Mon Oct 13 2003 04:30 pm

> OK. Let’s say I have 20 character arrays. I put their
> pointers into an array of pointers.
> lineptr[0] = '\0';

When you ask something like this, show the declaration.

I assume that you have declarations which are something like this:

  char *lineptr[20];

  char line11[] = "123456789abcdefghijklmnopqrstuvwxyz";

and your message includes the following executable line:

  lineptr[11] = line11;

That sets the data contained by lineptr[11] to be the address of line11.
That is the same as the address of the first character in lineptr11's array
since in C and C++ array addresses are the address of the first character in
the array.

> Next, I want to refer to a particular character array, and
> a particular subset within that character array. Example,
> sub 7 of lineptr[11].

What is 'sub 7'?

Do you mean the character line11[7] (which the above sets to the character
'7') ?

..  Ed

> Rob C wrote in message
> news:3f8afa62$1@newsgroups.borland.com...
>
> OK. Let’s say I have 20 character arrays. I put their pointers
> into an array of pointers.
> lineptr[0] = '\0';
>     lineptr[1] = line1;
>     lineptr[2] = line2;
>     lineptr[3] = line3;
>     lineptr[4] = line4;
>     lineptr[5] = line5;
>     lineptr[6] = line6;
>     lineptr[7] = line7;
>     lineptr[8] = line8;
>     lineptr[9] = line9;
>     lineptr[10] = line10;
>     lineptr[11] = line11;
>     lineptr[12] = line12;
>     lineptr[13] = line13;
>     lineptr[14] = line14;
>     lineptr[15] = line15;
>     lineptr[16] = line16;
>     lineptr[17] = line17;
>     lineptr[18] = line18;
>     lineptr[19] = line19;
>     lineptr[20] = line20;
> Next, I want to refer to a particular character array, and
> a particular subset within that character array. Example,
> sub 7 of lineptr[11].
>
> This has got me stumped.

.